Examples with INVOKER io.trino.sql.tree.CreateView.Security.INVOKER used on opensource projects

Example 1 with INVOKER

use of io.trino.sql.tree.CreateView.Security.INVOKER in project trino by trinodb.

the class CreateViewTask method execute.

@Override
public ListenableFuture<Void> execute(CreateView statement, QueryStateMachine stateMachine, List<Expression> parameters, WarningCollector warningCollector) {
    Session session = stateMachine.getSession();
    QualifiedObjectName name = createQualifiedObjectName(session, statement, statement.getName());
    accessControl.checkCanCreateView(session.toSecurityContext(), name);
    if (metadata.isMaterializedView(session, name)) {
        throw semanticException(TABLE_ALREADY_EXISTS, statement, "Materialized view already exists: '%s'", name);
    }
    if (metadata.isView(session, name)) {
        if (!statement.isReplace()) {
            throw semanticException(TABLE_ALREADY_EXISTS, statement, "View already exists: '%s'", name);
        }
    } else if (metadata.getTableHandle(session, name).isPresent()) {
        throw semanticException(TABLE_ALREADY_EXISTS, statement, "Table already exists: '%s'", name);
    }
    String sql = getFormattedSql(statement.getQuery(), sqlParser);
    Analysis analysis = analyzerFactory.createAnalyzer(session, parameters, parameterExtractor(statement, parameters), stateMachine.getWarningCollector()).analyze(statement);
    List<ViewColumn> columns = analysis.getOutputDescriptor(statement.getQuery()).getVisibleFields().stream().map(field -> new ViewColumn(field.getName().get(), field.getType().getTypeId())).collect(toImmutableList());
    // use DEFINER security by default
    Optional<Identity> owner = Optional.of(session.getIdentity());
    if (statement.getSecurity().orElse(null) == INVOKER) {
        owner = Optional.empty();
    }
    ViewDefinition definition = new ViewDefinition(sql, session.getCatalog(), session.getSchema(), columns, statement.getComment(), owner);
    metadata.createView(session, name, definition, statement.isReplace());
    stateMachine.setOutput(analysis.getTarget());
    stateMachine.setReferencedTables(analysis.getReferencedTables());
    return immediateVoidFuture();
}